CPU heat sink mount attachment structure

ABSTRACT

A CPU heat sink mount attachment structure including a retaining pin member, a spring member and an inner retaining pin, characterized in that the inner retaining pin is structured to comprise a main body and a reset button, and the inner retaining pin and the spring member are disposed within the retaining pin member. When the main body of the inner retaining pin is pressed downward, a retaining pin within the main body props pin-foot at a bottom portion of the retaining pin member. Furthermore, catch hooks within the main body mutually clasp with corresponding catch hooks of the retaining pin member, thereby achieving the object of securing the main body. Accordingly, the aforementioned structure can be used to quickly and expediently assemble and disassemble a heat sink mount.

BACKGROUND OF THE INVENTION

(a) Field of the Invention

The present invention relates to an attachment structure for a CPU heat sink mount, and more particularly to a heat sink mount attachment structure that enables quick and expedient assembly and disassembly of a heat sink mount, thereby achieving the object of securing a CPU (central processing unit) heat sink.

(b) Description of the Prior Art

As technology changes with time, speed of the CPU as used in personal computers is constantly increasing While simultaneously processing large quantities of data. After Intel Corporation officially released the LGA775 CPU, which in practice meant that the existing socket mode was no longer used, and design of the pins on the CPU were changed to Ball mode, Which achieved using a 775 Ball design to insert into a CPU socket named Socket T and come in contact with an elastic piece within the CPU socket, and locating holes defined in a periphery of the CPU socket afforded securing the heat sink. In order to accommodate the CPU framework, the heat sink used by the CPU has also undergone transformation, particularly the heat sink mount used to secure the heat sink, which must not only provide sufficient force to secure the heat sink, but also avoid damaging the elastic piece within the CPU socket. Referring to FIG. 1, which depicts a fastening method presently adopted by an attachment structure b of a heat sink mount a. The attachment structure b uses a combining method of an inner pin b1 and an outer pin b2 to fasten a periphery of the heat sink mount a between the inner pin b1 and the outer pin b2. A bottom of the outer pin b2 is provided with a pin-foot b21, dimensions of which are slightly larger than a locating hole c1 in a periphery of a CPU socket c. A front end of the pin-foot b21 is provided with a tapered portion, and transformation in dimensions of the tapered portion when the pin-foot b21 penetrates the locating hole c1 achieves the object of securing the heat sink mount a. Such a securing method is extremely convenient for attaching the heat sink mount a, but extremely inconvenient when disassembling or replacing it. Hence, there is a need for an improved design.

SUMMARY OF THE INVENTION

In light of the shortcomings of the aforementioned conventional structure, the inventor of the present invention, having accumulated years of experience in related arts, attentively and circumspectly carried out extensive study and exploration to ultimately design a new improved CPU heat sink mount attachment structure.

A primary object of the present invention is to provide a heat sink mount attachment structure that is able to facilitate quick and expedient assembly and disassembly of the heat sink mount.

In order to achieve the aforementioned object, the attachment structure for a CPU heat sink mount of the present invention comprises a retaining pin member, a spring member and an inner retaining pin, wherein a through hole is provided central of the retaining pin member, and interior of the retaining pin member is provided with a holding space for containing the spring member and the inner retaining pin. An outer side wall of the retaining pin member is provided with catch hooks and anti-rotation locating structures, and a bottom portion of the retaining pin member is provided with downward extending pin-foot, and a slot opening is defined central of the pin-foot. The inner retaining pin is structured to comprise a main body and a reset button, wherein the main body is provided with a downward extending retaining pin and catch hooks. An outer side wall of the main body is provided with a yield notch and locating slide grooves. A bottom portion of the reset button is provided with a pushing block and a pad block. Moreover, locating slide blocks are configured on the reset button corresponding to the locating slide grooves of the main body.

According to the aforementioned structure, when the main body of the inner retaining pin is pressed downward, the retaining pin Within the main body props the pin-foot at the bottom portion of the retaining pin member, thereby securely clipping two side walls of the pin-foot within a fixing hole of a main board. Furthermore, the catch hooks within the main body mutually clasp with the corresponding catch hooks of the retaining pin member, thereby enabling the retaining pin to maintain a fixed position within the pin-foot, and achieving the object of securing the main body. After pressing down on the reset button, the pushing block within the reset button push the catch hooks of the retaining pin member in a reverse direction, thereby releasing the catch hooks of the retaining pin member from the catch hooks within the main body, and the spring member provides a restoring force that returns the main body to a released state. In conclusion, the heat dissipating attachment structure of the present invention is provided with a switch effect that is used to effectuate quick and expedient assembly and disassembly of the heat sink mount.

To enable a further understanding of said objects and the technological methods of the invention herein, brief description of the drawings is provided below followed by detailed description of the preferred embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a schematic view of an attachment structure of prior art.

FIG. 2 shows an exploded elevational view according to the present invention.

FIG. 3 shows an assembled elevational view according to the present invention.

FIG. 4 shows a cross-sectional view of the present invention in use (1).

FIG. 5 shows a cross-sectional view of the present invention in use (2).

FIG. 6 shows an assembled elevational view from another perspective according to the present invention.

FIG. 7 shows a cross-sectional schematic view of an escapement according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to FIGS. 2 and 3, which depict a CPU heat sink mount attachment structure of the present invention, structured to comprise a retaining pin member 10, a spring member 20 and an inner retaining pin 30.

A through hole 11 is defined central of the retaining pin member 10, and interior of the retaining pin member 10 is provided with a holding space 12 for containing the spring member 20 and the inner retaining pin 30. An outer side wall of the retaining pin member 10 is provided with catch hooks 13 and anti-rotation locating structures 14. A bottom portion of the retaining pin member 10 is provided with downward extending pin-foot 15, and a slot opening 15 a is defined central of the pin-foot 15.

The inner retaining pin 30 is structured to comprise a main body 31 and a reset button 32. The main body 31 is provided with a downward extending retaining pin 31 a and catch hooks 31 b. An outer side wall of the main body 31 is provided with a yield notch 31 c and locating slide grooves 31 d. A bottom portion of the reset button 32 is provided with the pushing block 32 a and a pad block 32 b. Moreover, locating slide blocks 32 c are configured on the reset button 32 corresponding to the locating slide grooves 31 d of the main body 31.

When assembling the present invention, the spring member 20 is first placed within the holding space 12 of the retaining pin member 10, and then the locating slide blocks 32 c of the reset button 32 are inserted within the locating slide grooves 31 d of the main body 31, thereby integrating the inner retaining pin 30. Finally, the inner retaining pin 30 is inserted into the retaining pin member 10 corresponding to direction of the locating structures 14, thereby plugging the retaining pin 31 a of the inner retaining pin 30 within the slot opening 15 a of the catch foot 15. Moreover, the pad block 32 b of the reset button 32 is in a juxtaposed position to the yield groove 31 c.

Referring to FIGS. 4 and 5, which depict cross-sectional schematic views of the present invention in use. When the main body 31 of the inner retaining pin 30 is pressed downward, the retaining pin 31 a within the main body 31 props the pin-foot 15 at the bottom portion of the retaining pin member 10, thereby securely clipping two side walls of the pin-foot 15 within a fixing hole 3 a of a main board. Furthermore, the catch hooks 31 b within the main body 31 mutually clasp with the corresponding catch hooks 13 of the retaining pin member 10, thereby enabling the retaining pin 31 a to maintain a fixed position within the pin-foot 15, and achieving the object of securing the main body 31. After pressing down on the reset button 32, the pushing block 32 a within the reset button 32 push the catch hooks 13 of the retaining pin member 10 in a reverse direction, thereby releasing the catch hooks 13 of the retaining pin member 10 from the catch hooks 31 b Within the main body 31, and the spring member 20 provides a restoring force that returns the main body 31 to a released state.

Referring to FIGS. 6 and 7, in order to prevent the main body 31 of the inner retaining pin 30 causing a succession of repositioning movements because of the restoring force of the spring member 20 after pressing the reset button 32, an escapement is configured between the main body 31 and the retaining pin member 10, which uses a limit aperture 31 e defined in a rear of the main body 31, and a corresponding limit catch hook 16 disposed on the retaining pin member 10. After assembling the main body 31 and the retaining pin member 10, the limit catch hook 16 is confined to straight movement within the limit aperture 31, thereby preventing separation.

In conclusion, the attachment structure for a CPU heat sink mount of the present invention is structured to comprise the retaining pin member 10, the spring member 20 and the inner retaining pin 30. Moreover, the main body 31 and the reset button 32 serve as a switch structure for the inner retaining pin 30. The present invention is provided with effectiveness to quickly and expediently assemble and disassemble a heat sink mount. Furthermore, practicability and advancement of the present invention clearly comply with essential elements as required for a new patent application. Accordingly, a new patent application is proposed herein.

It is of course to be understood that the embodiments described herein are merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims. 

1. A CPU heat sink mount attachment structure comprising a retaining pin member, a spring member and an inner retaining pin, comprising; the retaining pin member is provided with a through hole central thereof, and interior of the retaining pin member is provided with a holding space for containing the spring member and the inner retaining pin, an outer side wall of the retaining pin member is provided with catch hooks and anti-rotation locating structures, and a bottom portion of the retaining pin member is provided with downward extending pin-foot, a slot opening is defined central of the pin-foot; the inner retaining pin is structured to comprise a main body and a reset button, the main body is provided with a downward extending retaining pin and catch hooks, an outer side wall of the main body is provided with a yield notch and locating slide grooves, a bottom portion of the reset button is provided with a pushing block and a pad block, moreover, locating slide blocks are configured on the reset button corresponding to the locating slide grooves of the main body.
 2. The CPU heat sink mount attachment structure according to claim 1, comprising an escapement is configured between the main body and the retaining pin member, which uses a limit aperture defined in a rear of the main body, and a corresponding limit catch hook disposed on the retaining pin member, whereby after assembling the main body and the retaining pin member, the limit catch hook is confined to straight movement within the limit aperture, thereby preventing separation. 